为Mac设置Python多版本开发环境

pyenv.md

https://github.com/yyuu/pyenv

安装

$ brew update
$ brew install pyenv

更新pyenv, 用brew upgrade pyenv.

配置

上述安装完成则根据以下提示进行配置

==> Caveats
To use Homebrew's directories rather than ~/.pyenv add to your profile:
  export PYENV_ROOT=/usr/local/var/pyenv

To enable shims and autocompletion add to your profile:
  if which pyenv > /dev/null; then eval "$(pyenv init -)"; fi
==> Summary
🍺  /usr/local/Cellar/pyenv/1.0.7: 548 files, 2.2M, built in 51 seconds

按照提示，将以上的两条语句添加到profile里就可以了，由于我用的shell是zsh，所以我在.zshrc里追加

export PYENV_ROOT=/usr/local/var/pyenv
if which pyenv > /dev/null; then eval "$(pyenv init -)"; fi

重启shell以使路径变更生效

$ exec $SHELL

安装对应版本的python

$ pyenv install x.x.x